The prototype for this model is Road Number 99 7238-1 as it looks in Era VI. The model has a prototypical paint scheme and lettering. It has a DCC interface connector, a reproduction of the cab, and headlights that change over with the direction of travel, two motors, a general-purpose socket, and a smoke unit with exhaust synchronized with the wheel movements. Length over the buffers 55 cm / 21-5/8".